DOCS: Add Press Release

[huynhicode]

:bookmark_tabs: Summary

This PR adds the Press Release blog post and updates the Announcements page.

Resolves #n/a

:straight_ruler: Design Decisions

Design decisions made by the Mermaid Chart team.

:clipboard: Tasks

Make sure you

• [x] :book: have read the contribution guidelines
• [ ] :computer: have added necessary unit/e2e tests.
• [ ] :notebook: have added documentation. Make sure MERMAID_RELEASE_VERSION is used for all new features.
• [ ] :bookmark: targeted develop branch

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 77.85%. Comparing base (b04e150) to head (de1b2c3). Report is 2 commits behind head on master.

Additional details and impacted files

[](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5400?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js) ```diff @@ Coverage Diff @@ ## master #5400 +/- ## ========================================== - Coverage 77.92% 77.85% -0.07% ========================================== Files 175 175 Lines 14531 14531 Branches 868 868 ========================================== - Hits 11323 11313 -10 - Misses 3001 3010 +9 - Partials 207 208 +1 ``` | [Flag](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5400/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js) | Coverage Δ | | |---|---|---| | [e2e](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5400/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js) | `83.09% <ø> (-0.10%)` | :arrow_down: | | [unit](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5400/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js) | `43.37% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js#carryforward-flags-in-the-pull-request-comment) to find out more. [see 7 files with indirect coverage changes](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5400/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js)